[[email protected]: Re: bash scripting]
i agree, looks like bash is not in /bin.
you can start scripts:
#!/bin/env bash
or
#!/bin/env perl
to find the interpreter in your path.
unfortunately, even this is not completely portable, as i have seen env in /bin and /usr/bin.
-rei
----- Forwarded message from John Kelly <[email protected]> -----
To: [email protected]
Subject: Re: bash scripting
Date: Sat, 14 Aug 2004 13:36:41 +0100
From: John Kelly <[email protected]>
Hi,
Quoted 11 lines · On Fri, 13 Aug 2004 23:35:14 -0700 "" <[email protected]> wrote:
I wrote the following script to learn to read and write files. No matter how I try to start it it doesn't work.
#!/bin/bash
shopt -s -o nounset
declare LINE
Quoted 8 lines
exec 3< test.dat
while read LINE <&3 ; do
printf "%s\n" "$LINE"
doneexit 0
I copied this into a file and it runs fine on my Debian system. I think your error message gives a hint.
Quoted 6 lines
this is the error
[root@localhost scripts]# ./test.sh
: bad interpreter: No such file or directory
[root@localhost scripts]#
: bad interpreter: No such file or directory
Usually means that the system can't find the interpreter. ie when it looks at the line:#!/bin/bash
it can't find /bin/bash.
I have seen similiar problems with perl. Someone puts #!/bin/perl
in a script. It works on one machine but if the script is moved to another machine, it bombs out because the perl interpreter is in a different place.
I assume bash is on your system. Try running
which bash
to find the path to the bash excutable. On most Linux systems it is /bin/bash but I have seen /usr/local/bin/bash and /opt/bin/bash (on a Solaris system).
Incidently, my standard way of writing scripts in vi is to type #!
Then type <ESC>
Then type : r ! which bash
This causes the path to bash appear on the line under the #! line. I then move the cursor up one line and type J to join the lines. This guarantees the correct path to the interpreter on the machine I am using. But then you may not be using vi :-)
Hope this helps.
regards,
John Kelly
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Signature · 8 lines
Rei Shinozuka [email protected] Ridgewood, New Jersey - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs